Class HTMLEventImpl

This class must be inherited by the developer for each element where the HTML element supports events.

Inheritance
System.Object
HTMLEventImpl
HashElementEvents
Implements
System.IDisposable
Namespace: Syncfusion.Windows.Forms.HTMLUI
Assembly: Syncfusion.HTMLUI.Windows.dll
Syntax
public abstract class HTMLEventImpl : Object, IHTMLEvent, IDisposable

Constructors

HTMLEventImpl(IHTMLElement, String)

Initializes a new instance of the HTMLEventImpl class

Declaration
protected HTMLEventImpl(IHTMLElement parent, string name)
Parameters
Type Name Description
IHTMLElement parent

Parent of the event.
System.String name

Name of the event.

Fields

m_events

List of events which were attached to the element.

Declaration
protected ArrayList m_events
Field Value
Type
System.Collections.ArrayList

Properties

Name

Gets or sets the unique name of the event.

Declaration
public string Name { get; set; }
Property Value
Type
System.String

Parent

Gets or sets the parent element of the current event.

Declaration
public IHTMLElement Parent { get; set; }
Property Value
Type
IHTMLElement

Methods

add_NameChanged(ValueChangedEventHandler)

Declaration
public void add_NameChanged(ValueChangedEventHandler value)
Parameters
Type Name Description
ValueChangedEventHandler value

add_ParentChanged(ValueChangedEventHandler)

Declaration
public void add_ParentChanged(ValueChangedEventHandler value)
Parameters
Type Name Description
ValueChangedEventHandler value

AttachEvent(EventHandler)

Attaches user method to the current event.

Declaration
public void AttachEvent(EventHandler handler)
Parameters
Type Name Description
System.EventHandler handler

User delegate on method which must catch the event raising.

DetachEvent(EventHandler)

Detaches user method to the current event.

Declaration
public void DetachEvent(EventHandler handler)
Parameters
Type Name Description
System.EventHandler handler

User delegate on method which must catch the event raising.

Dispose()

On dispose, detaches all events from the HTML element.

Declaration
public void Dispose()

Finalize()

Finalizes an instance of the HTMLEventImpl class

Declaration
protected override void Finalize()

OnNameChanged(ValueChangedEventArgs)

Called by property set part on value change. This is best place for custom logic.

Declaration
protected virtual void OnNameChanged(ValueChangedEventArgs args)
Parameters
Type Name Description
ValueChangedEventArgs args

ValueChangedEventArgs instance

OnParentChanged(ValueChangedEventArgs)

Called by property set part on value change. This is best place for custom logic.

Declaration
protected virtual void OnParentChanged(ValueChangedEventArgs args)
Parameters
Type Name Description
ValueChangedEventArgs args

ValueChangedEventArgs instance

RaiseEvent(EventArgs)

Raises event for user.

Declaration
public abstract void RaiseEvent(EventArgs e)
Parameters
Type Name Description
System.EventArgs e

Reference on input parameters.

RaiseNameChanged(ValueChangedEventArgs)

Raises NameChanged event when property value changes.

Declaration
protected void RaiseNameChanged(ValueChangedEventArgs args)
Parameters
Type Name Description
ValueChangedEventArgs args

ValueChangedEventArgs instance

RaiseParentChanged(ValueChangedEventArgs)

Raises ParentChanged event when property value changes.

Declaration
protected void RaiseParentChanged(ValueChangedEventArgs args)
Parameters
Type Name Description
ValueChangedEventArgs args

ValueChangedEventArgs instance

remove_NameChanged(ValueChangedEventHandler)

Declaration
public void remove_NameChanged(ValueChangedEventHandler value)
Parameters
Type Name Description
ValueChangedEventHandler value

remove_ParentChanged(ValueChangedEventHandler)

Declaration
public void remove_ParentChanged(ValueChangedEventHandler value)
Parameters
Type Name Description
ValueChangedEventHandler value

Events

NameChanged

Utility event. Helps developer to catch any changes of class property. Name value.

Declaration
public event ValueChangedEventHandler NameChanged
Event Type
Type
ValueChangedEventHandler

ParentChanged

Utility event. Helps developer to catch any changes of class property. Parent value.

Declaration
public event ValueChangedEventHandler ParentChanged
Event Type
Type
ValueChangedEventHandler

Implements

System.IDisposable